Frost line depth in Caswell County, NC

How deep the ground freezes in Caswell County, NC

12 in. Dig to 12 in, the 12 in code minimum. Nearest NOAA station: Yanceyville 4 Se, 4.9 mi.

Your building department sets the legal frost line depth (IRC Table R301.2(1)); footings must go below it (R403.1.4.1). Call them before you dig.